Quick followup - I just got off the phone with Sena inquiring about the mixing of the headset intercom audio and the audio stream from a multipoint paired SR10. The tech indicated it was not possible on the SMH10. I referred him to the various reports of that ability. He then changed his response to "We do not claim this ability". Sounded like this was the first they heard of it and, if it is indeed possible, it was unintentional.